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Finding the Fourth Proportional to 394,436.71, 544,360.89 and 233,343.55

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Solution

The fourth proportional to 394,436.71, 544,360.89 and 233,343.55 is: 322,036.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,436.71 : 544,360.89 = 233,343.55 : x
  2. Step 2: Convert to fraction form
    394,436.71/544,360.89 = 233,343.55/x
  3. Step 3: Cross multiply
    394,436.71x = 544,360.89 × 233,343.55
  4. Step 4: Simplify right side
    394,436.71x = 127,023,102,553.76
  5. Step 5: Solve for x
    x = 127,023,102,553.76/394,436.71
  6. Step 6: Final answer
    x = 322,036.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.